Start with parenthesis first.
so a+a+2a+48
Then add all like terms.
4a=48
Then solve for a by dividing 4 from 48.
a=12
Answer:
B. A regular polygon having 10 sides if called a regular decagon.
Step-by-step explanation:
Hexagon- 6 sides
Pentagon- 5 sides
Octagon- 8 sides
22.0. diameter times pie to get your answer then round to 1dp
Answer:
C

Co efficient means the number or value beside preventing the variable from standing alone
Answer:
x=2
Step-by-step explanation:
We know the only number that gets us back to 0 after subtracting 4 is 4, because 4-4=0. The square root of 4 is 2. Hope my explanation wasn't too confusing!
2²=4
4-4=0